Saturday, May 28, 2011

Using dynamic class loading feature in ExtJS 4

ExtJS 4 introduces a new feature about dynamical class loading. It is not recommended in a product environment. However, it will be very useful when you want to debug your application. Especially, it is extremely helpful when you have to debug into source code of ExtJS 4 as it is still buggy now. Here is a template that I use in my project.

First of all, in HTML HEADER, I include ExtJS file ext-dev.js instead of ext-all-debug.js . And, ext-dev.js is the only JavaScript file I need to included there.

Then, in the first page of ExtJS app, I have code like below,

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